Muscles

Muscles

1. 3 types?

   • Voluntary (striated-skeletal)
     • 2 types
       • Type one
         • Slow contracting
         • Used for slow work
           • Can keep going
       • Type two
         • Fast contracting
         • Used in athletic horses
         • Fatigues easily
   • Involuntary (non striated)
     • Affects movement of hollow organs-bladder
   • Cardiac
     • Only in heart
       • Atrial
       • Ventricular
     • Controlled by CNS
     • Signalled to act via nerve impulses
       • Stops when nerve impulses stop

2. Coordination?

   • The ability of muscles to work together

3. No coordination?

   • Inability of muscles to work together
   • Ataxia
     • Weakness
     • Difficult to make turnings
     • Stumbling
     • Unable to flex limbs properly

4. What are cartilages/functions?

   • Smooth rubber like
   • Smooth movement between joints
   • 3 x types
     • Hyaline
       • Compressable
         • End of humorous/radious
     • Yellow
       • Smooth
         • Elastic
     • White
       • Fibrous
         • Strong
           • between vertibrae
       • Articulatar
         • Smooth/unblemished
         • Most
   • No blood supply
   • Wear/tear=arthritis
     • > work = premature wear
     • Too much work for young = wear & tear
     • Type of work determines which joints will wear